Question

可能重复：
How to exceed 65535 byte limit for method code

我在堆中有超过64kb的数据，我怎样才能克服限制？

public class ProductList extends Activity {

    //Listview
    private ListView lv;

    // Listview Adapter
    ArrayAdapter<String> adapter;

    // Search EditText
    EditText inputSearch;

    // ArrayList for Listview
    ArrayList<HashMap<String, String>> productList;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_product_list);


        String as = System.getProperty("line.separator");


                ArrayList<String> products = new ArrayList<String>();

                products.add("Banana" +as+ "Its color is yellow.");
                products.add("Orange" +as+ "Orange is a sour fruit.");
                products.add("Onion" +as+ "Onion usually used on Pizza");
                products.add("Banana" +as+ "Its color is yellow.");
                products.add("Orange" +as+ "Orange is a sour fruit.");
                products.add("Onion" +as+ "Onion usually used on Pizza");
                products.add("Banana" +as+ "Its color is yellow.");
                products.add("Orange" +as+ "Orange is a sour fruit.");
                products.add("Onion" +as+ "Onion usually used on Pizza");
                products.add("Banana" +as+ "Its color is yellow.");
                products.add("Orange" +as+ "Orange is a sour fruit.");




        lv = (ListView) findViewById(R.id.list_view);
        inputSearch = (EditText) findViewById(R.id.inputSearch);

        // Adding items to listview
        adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.p_list,   products);
        lv.setAdapter(adapter);

        /**
         * Enabling Search Filter
         * */
        inputSearch.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                // When user changed the Text
                ProductList.this.adapter.getFilter().filter(cs);
            }

            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub
            }
        });


    }

}

以下是问题https://dl.dropbox.com/u/15065300/problem-4.png

的图片

我是android的新手，所以需要精心的建议。

Answer 1

Java将方法的大小限制为65535字节。您可以做的是将onCreate方法分解为更小的方法，然后从onCreate中调用它们。

编辑：

您可以做的是创建一个单独的方法来填充您的列表。在创建列表适配器之前，您需要调用它。

注意：尽管正如其他人所提到的那样，如果你有这么多硬编码的值，通常会被认为是不好的做法。建议将其更新为从DataBase查询，或从某种类型的文件（txt，xml）读取。

public class ProductList extends Activity 
{
    //Listview
    private ListView lv;

    // Listview Adapter
    ArrayAdapter<String> adapter;

    // Search EditText
    EditText inputSearch;

    ArrayList<String> products = new ArrayList<String>();

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_product_list);

        lv = (ListView) findViewById(R.id.list_view);
        inputSearch = (EditText) findViewById(R.id.inputSearch);

        // Adding items to listview
        initProductList();
        adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.p_list, products);
        lv.setAdapter(adapter);

        /**
         * Enabling Search Filter
         * */
        inputSearch.addTextChangedListener(new TextWatcher() 
        {
            @Override
            public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                // When user changed the Text
                ProductList.this.adapter.getFilter().filter(cs);
            }

            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub
            }
        });
    }

    private void initProductList()
    {
        String as = System.getProperty("line.separator"); 
        products.add("Banana" +as+ "Its color is yellow.");
        products.add("Orange" +as+ "Orange is a sour fruit.");
        products.add("Onion" +as+ "Onion usually used on Pizza");
        products.add("Banana" +as+ "Its color is yellow.");
        products.add("Orange" +as+ "Orange is a sour fruit.");
        products.add("Onion" +as+ "Onion usually used on Pizza");
        products.add("Banana" +as+ "Its color is yellow.");
        products.add("Orange" +as+ "Orange is a sour fruit.");
        products.add("Onion" +as+ "Onion usually used on Pizza");
        products.add("Banana" +as+ "Its color is yellow.");
        products.add("Orange" +as+ "Orange is a sour fruit.");
    }
}

Answer 2

你没有。您需要将数据存储在SQLite database中，或从文件中读取数据。一个方法中的代码不能超过64kB，虽然将它分成多个方法会起作用，但这是一种糟糕的编码实践。

我非常强烈建议您将数据保存在SQLite数据库中。 Here是一个很好的教程。

如何动态地将对象分配到堆中

2 个答案: